Different Emails For Different Alerts

abrist · Post by **abrist** » Fri Feb 21, 2014 2:45 pm

What you want to do should work.

jbennett wrote:I think you're still trying to help me with the method that hhlodge suggested, which isn't what I'm trying to do in this instance.

I was going to take you down the road of creating new notification handlers, but it looks like you will be using the xi handler and notification templates - which do not use notify-*-by-email handlers, but instead uses the xi_*_notification_handlers.
You will need to include/remap the $SERVICENOTES$ macro in the xi_service_notification_handler command. Add the following to the end:

Code: Select all

--servicenotes="$SERVICENOTES$"

And then you can use the %servicenotes% macro in the template.

hhlodge · Post by **hhlodge** » Fri Feb 21, 2014 3:21 pm

On an aside, this exercise has gotten me to pursue something I've wanted Nagios to do for years and that's to have all the recipients of a notification be in the To: header so people can "reply all" to issues, yet each notification from Nagios only go the one intended recipient ($CONTACTEMAIL) so they don't get multiple messages and their Respond URL is unique. I now have this working well by constructing the message myself with a similar called script I suggested here, looping through the contacts in $NOTIFICATIONRECIPIENTS$ and then piping it all to sendmail/Postfix directly. My last challenge is to parse the config file to get the email field - which goes in the To: header - mapped to the contact_name. I can post the final notification handler and script when I have that working if anyone is interested.

hhlodge · Post by **hhlodge** » Mon Feb 24, 2014 9:26 am

I am running into trouble passing arguments from Nagios to a Korn shell script. Can someone shed some light on these PROBLEM[0-9] values? Is it some sort of limit?

Code: Select all

/usr/local/scripts/notify-custom-service-by-email.ksh "$NOTIFICATIONTYPE$" "$SERVICEDESC$" "$SERVICEGROUPNAMES$" "$HOSTALIASHOSTADDRESS$" "$SERVICESTATE$" "$LONGDATETIME$" "$NOTIFICATIONRECIPIENTS$" "$SERVICEOUTPUT$" "$LONGSERVICEOUTPUT$" "$SERVICEACKAUTHOR$" "$NOTIFICATIONCOMMENT$" "$SERVICEACTIONURL$" "$NOTIFICATIONTYPE$" "$HOSTNAME$" "$SERVICEDESC$" "$CONTACTEMAIL$"

NOTIFICATIONTYPE="$1"
SERVICEDESC="$2"
SERVICEGROUPNAMES="$3"
HOSTALIASHOSTADDRESS="$4"
SERVICESTATE="$5"
LONGDATETIME="$6"
NOTIFICATIONRECIPIENTS="$7"
SERVICEOUTPUT="$8"
LONGSERVICEOUTPUT="$9"
SERVICEACKAUTHOR="$10"
NOTIFICATIONCOMMENT="$11"
SERVICEACTIONURL="$12"
NOTIFICATIONTYPE="$13"
HOSTNAME="$14"
SERVICEDESC="$15"
CONTACTEMAIL="$16"

echo "NOTIFICATIONTYPE="$1" SERVICEDESC="$2" SERVICEGROUPNAMES="$3" HOSTALIASHOSTADDRESS="$4" SERVICESTATE="$5" LONGDATETIME="$6" NOTIFICATIONRECIPIENTS="$7" SERVICEOUTPUT="$8" LONGSERVICEOUTPUT="$9" SERVICEACKAUTHOR="$10" NOTIFICATIONCOMMENT="$11" SERVICEACTIONURL="$12" NOTIFICATIONTYPE="$13" HOSTNAME="$14" SERVICEDESC="$15" CONTACTEMAIL="$16"" >> /tmp/nagargs

[root@sigitmon-vm ~]# cat /tmp/nagargs 
NOTIFICATIONTYPE=PROBLEM SERVICEDESC=Check Badness SERVICEGROUPNAMES= HOSTALIASHOSTADDRESS=$ SERVICESTATE=WARNING LONGDATETIME=Mon Feb 24 09:12:37 EST 2014 NOTIFICATIONRECIPIENTS=hhlodge,ktucker SERVICEOUTPUT=A bit of a problem here. LONGSERVICEOUTPUT= SERVICEACKAUTHOR=PROBLEM0 NOTIFICATIONCOMMENT=PROBLEM1 SERVICEACTIONURL=PROBLEM2 NOTIFICATIONTYPE=PROBLEM3 HOSTNAME=PROBLEM4 SERVICEDESC=PROBLEM5 CONTACTEMAIL=PROBLEM6

abrist · Post by **abrist** » Mon Feb 24, 2014 10:53 am

I believe (someone correct me if I am wrong) ksh maxes out at 10 passed parameters ($0-$9). In bash, you can wrap the parameter number in curly braces for parameters over 10 - ie. ${13}.
I think you may have to use "shift" to get more parameters in ksh.

hhlodge · Post by **hhlodge** » Mon Feb 24, 2014 12:26 pm

Not what I am seeing.

Code: Select all

# cat args.ksh 
#!/bin/ksh
echo "Arg1 is: $1"
echo "Arg2 is: $2"
echo "Arg3 is: $3"
echo "Arg4 is: $4"
echo "Arg5 is: $5"
echo "Arg6 is: $6"
echo "Arg7 is: $7"
echo "Arg8 is: $8"
echo "Arg9 is: $9"
echo "Arg10 is: $10"
echo "Arg11 is: $11"
echo "Arg12 is: $12"
echo "Arg13 is: $13"
echo "Arg14 is: $14"
# ./args.ksh 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Arg1 is: 1
Arg2 is: 2
Arg3 is: 3
Arg4 is: 4
Arg5 is: 5
Arg6 is: 6
Arg7 is: 7
Arg8 is: 8
Arg9 is: 9
Arg10 is: 10
Arg11 is: 11
Arg12 is: 12
Arg13 is: 13
Arg14 is: 14

abrist · Post by **abrist** » Mon Feb 24, 2014 12:30 pm

Fair enough. How are you populating the macros in your testing? Using nagios env vars, or did you just hand export these env vars?

hhlodge · Post by **hhlodge** » Mon Feb 24, 2014 12:32 pm

Scratch that, I was tricked!

Code: Select all

# ./args.ksh "one word" "two more words" "how many here"
Arg1 is: one word
Arg2 is: two more words
Arg3 is: how many here
Arg4 is: 
Arg5 is: 
Arg6 is: 
Arg7 is: 
Arg8 is: 
Arg9 is: 
Arg10 is: one word0
Arg11 is: one word1
Arg12 is: one word2
Arg13 is: one word3
Arg14 is: one word4

hhlodge · Post by **hhlodge** » Mon Feb 24, 2014 5:15 pm

I have this working well now but cannot get $SERVICEACTIONURL$ macro to expand. All documents I see say it should be available in a service notification. ??? Here's the command.

Code: Select all

/usr/local/scripts/notify-custom-service-by-email.ksh "$NOTIFICATIONTYPE$" "$SERVICEDESC$" "$SERVICEGROUPNAMES$" "$HOSTALIAS$" "$HOSTADDRESS$" "$SERVICESTATE$" "$LONGDATETIME$" "$NOTIFICATIONRECIPIENTS$" "$SERVICEOUTPUT$" "$LONGSERVICEOUTPUT$" "$SERVICEACKAUTHOR$" "$NOTIFICATIONCOMMENT$" "$SERVICEACTIONURL$" "$NOTIFICATIONTYPE$" "$HOSTNAME$" "$SERVICEDESC$" "$CONTACTEMAIL$"

And here is the script.

Code: Select all

#!/bin/ksh
# Custom Nagios service notifications

MSGFILE=/tmp/msgfile.$$

NOTIFICATIONTYPE="${1}"
SERVICEDESC="${2}"
SERVICEGROUPNAMES="${3}"
HOSTALIAS="${4}"
HOSTADDRESS="${5}"
SERVICESTATE="${6}"
LONGDATETIME="${7}"
NOTIFICATIONRECIPIENTS="${8}"
SERVICEOUTPUT="${9}"
LONGSERVICEOUTPUT="${10}"
SERVICEACKAUTHOR="${11}"
NOTIFICATIONCOMMENT="${12}"
SERVICEACTIONURL="${13}"
NOTIFICATIONTYPE="${14}"
HOSTNAME="${15}"
SERVICEDESC="${16}"
CONTACTEMAIL="${17}"

#echo "Args are: $*" > /tmp/nagargs
#echo "NOTIFICATIONTYPE="${1}" SERVICEDESC="${2}" SERVICEGROUPNAMES="${3}" HOSTALIAS="${4}" HOSTADDRESS="${5}" SERVICESTATE="${6}" LONGDATETIME="${7}" NOTIFICATIONRECIPIENTS="${8}" SERVICEOUTPUT="${9}" LONGSERVICEOUTPUT="${10}" SERVICEACKAUTHOR="${11}" NOTIFICATIONCOMMENT="${12}" SERVICEACTIONURL="${13}" NOTIFICATIONTYPE="${14}" HOSTNAME="${15}" SERVICEDESC="${16}" CONTACTEMAIL="${17}"" >> /tmp/nagargs

for USER in $(echo $NOTIFICATIONRECIPIENTS | /bin/sed -e "s/,/ /g")
do
	ADDR=$(/bin/egrep "contact_name$"[^I]"|email"[^I]"" /usr/local/nagios/etc/contacts.cfg  | /bin/awk ' { print $2 } ' | /bin/awk 'NR % 2 == 1 { o=$0 ; next } { print o ":" $0 }' | /bin/grep "^${USER}:" | cut -d: -f2)
	ALLADDR="$ALLADDR $ADDR"
done

MAILTO=$(echo "$ALLADDR" | /bin/sed -e "s/^ //" -e s"/ /,/g")

if [ "$SERVICEACKAUTHOR" != "" ]
then
	SERVICEACKAUTHORSTR="\nAcknowledged by: $SERVICEACKAUTHOR\n"
fi

if [ "$NOTIFICATIONCOMMENT" != "" ]
then
	NOTIFICATIONCOMMENTSTR="Comment: $NOTIFICATIONCOMMENT\n"
fi

echo -e "To: $MAILTO" > $MSGFILE
echo -e "Subject: ${NOTIFICATIONTYPE} Service Alert: ${HOSTNAME}/${SERVICEDESC} is ${SERVICESTATE}" >> $MSGFILE
/usr/bin/printf "%b" "***** Nagios Monitor XI Alert *****\n\nNotification Type: ${NOTIFICATIONTYPE}\n\nService: ${SERVICEDESC}\nService Groups: ${SERVICEGROUPNAMES}\nHost: ${HOSTALIAS}\nAddress: ${HOSTADDRESS}\nState: ${SERVICESTATE}\n\nDate/Time: ${LONGDATETIME}\nNotified: ${NOTIFICATIONRECIPIENTS}\n\nAdditional Info: ${SERVICEOUTPUT}\n${LONGSERVICEOUTPUT}${SERVICEACKAUTHORSTR}${NOTIFICATIONCOMMENTSTR}\nURL: ${SERVICEACTIONURL}" >> ${MSGFILE}
/bin/cat $MSGFILE | /usr/sbin/sendmail $CONTACTEMAIL
/bin/rm -f $MSGFILE

abrist · Post by **abrist** » Mon Feb 24, 2014 5:45 pm

A few questions:
1) I presume that you have defined the $SERVICEACTIONURL$ on the object?
2) Could be a shell escaping issue, can you try setting the macro to just alphanumerical characters for a test?

jbennett · Post by **jbennett** » Tue Feb 25, 2014 9:16 am

abrist wrote:What you want to do should work.
jbennett wrote:I think you're still trying to help me with the method that hhlodge suggested, which isn't what I'm trying to do in this instance.
I was going to take you down the road of creating new notification handlers, but it looks like you will be using the xi handler and notification templates - which do not use notify-*-by-email handlers, but instead uses the xi_*_notification_handlers.
You will need to include/remap the $SERVICENOTES$ macro in the xi_service_notification_handler command. Add the following to the end:
Code: Select all
--servicenotes="$SERVICENOTES$"
And then you can use the %servicenotes% macro in the template.

This worked perfectly!

Just one thing (and I only realized this once I implemented it): is it possible to nest the macros?

For instance in the service notes field, have hte following: http://%hostaddress%:8080/mainmenu.html.

Currently, in the service notes field I just have :8080/mainmenu.html and it works great.

Nesting the %hostaddress% information would allow me to jsut call the %servicenotes% field in the email template, making it more flexible.

Thoughts?

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